Analytical mechanics for students of physics and engineering (1913)
Dadourian, Haroutune Mugurditch, 1878- · New York, D. Van Nostrand company · leaf 27
a vector which has the same direction as the original vec-tor. If, in the equation b = ma, m be a scalar then b has thesame direction as a but its magnitude is m times that of a. 12 ANALYTICAL MECHANICSILLUSTRATIVE EXAMPLE. A man walks 3 miles N. 30° E., then one mile E., then 3 miles S. 45°… … Fig. 13. In order to find r analytically we first determine its components. Thus r^ = [3 cos (60°) + cos (0°) + 2 cos (-45°) + 4 cos (-90°)+ cos (120°)] miles= (2 + V^) miles= 3.41 miles.Ty = [3 sin (60°) + sin (0°) + 2 sin (-45°) + 4 sin (-90°)+ sin (120°)] miles= (2V3-\/2-4) mUes= —1.95 mUes. =…
Mechanics, Analytic
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